The detectives again go undercover as prostitutes

The first appearance of Dick O'Neill as Charlie Cagney. The case occurs in Chinatown, where Charlie just happened to work, so he helps out. This is the episode where Lacey shoots and kills a fleeing perp.

Cagney sees a robbery in progress, gives chase, loses the perp, and then gets into trouble because she didn't catch the guy. She doesn't like being accused of cowardice. Brother Brian shows up from L.A. to see how Charlie is doing.

A West Point cadet is facing court martial and refuses to talk because of his honor code. David Keeler is sure that the cadet is innocent, so Chris goes up to help out. Lacey has a visitor - her long-lost father, who ran out on her mother when Mary Beth was a child. Now he wants to see his grandchildren

A labor leader is killed. Once again, the victim seems to have led a blameless life, yet someone wanted him dead. In the B plot, Cagney's niece (who we met in #78) comes for a visit.